Portable fueling can be done safely, but it carries higher risks of spills, fires, and water pollution if not handled correctly.
The following practices are specifically for portable fuel containers and reflect the most important steps boaters can take to reduce environmental and safety hazards.
Fill Portable Containers on Shore
Filling containers on land reduces the chance that spills reach the water.
- Always fill portable fuel containers on shore, never on a dock or boat.
- Place the container on the ground before filling to prevent static buildup.
- Keep the fuel nozzle in contact with the container opening during filling.
- Avoid filling containers in truck beds with plastic liners.
Use Spill-Resistant Containers and Funnels
Spill-proof equipment reduces drips and overflows during transfer.
- Choose spill-proof or CARB-compliant portable fuel containers.
- Use a funnel or spill-resistant spout when transferring fuel to your vessel.
- Wipe down the container and funnel after fueling to remove residual fuel.
Control Drips with Oil-Only Absorbents
Absorbents catch small spills before they reach the water.
- Place absorbent pads or a “fuel bib” around the fill area.
- Keep a small supply of absorbents with your fueling gear.
- Store used absorbents in a sealed bag and dispose of them as hazardous waste at your County Household Hazardous Waste Facility.
Prevent Overfilling
Overfilling is one of the most common causes of spills during portable fueling.
- Fill slowly and listen for changes in sound as the container nears full
- Stop filling when the container is about 90% full to allow for expansion
- Ensure your boat’s fuel tank vent is unobstructed before transferring fuel
Never Use Soap or Detergent on Fuel Spills
Soap breaks fuel into smaller droplets that spread pollution and harm wildlife.
- Use absorbents only — never soap or detergent
- Remember: using soap on a fuel spill is illegal in California
- Clean up spills immediately and dispose of materials properly
Report Any Spill Immediately
Report all spills to BOTH:
- National Response Center: 1-800-424-8802
- California Office of Emergency Services: 1-800-852-7550